Concrete culvert form



Sept. 12, 1933. F, scQTT 1,926,633

' CONCRETE CULVERT FORM Filed May 28, 1930 4 Sheets-Sheet l Cl/AJTEENFScarf INVENTOR ATTORNEY 12, 1933. c sco 'r 1,926,633

CONCRETE CULVERT FORM UHhsTEE/v F 150017 INVENTOR' ATTORNEY Sept. 12,1933.

c. F. SCOTT R 1,926,633

CONCRETE CULVERT FORM Filed May 28, 1930 Sheets-Sheet 4 Egg. 9.

O'HAJTEEN F Jcorr- INVENTOR ATTORNEY Patented Sept. 12, 1933 CONCRETEconvent: FORM 'Chasteen Fr-Scott, OkIah Q ty 10m V v V Applicat ay 28',1930; Serial N e This invention relates to, improvements 'in forms formolding concrete culverts. In moldingculverts ofysmall sizes,it-has beenheretofore customary to construct the moldingv forms of 5 wood but thismethod of molding has been found tobe entirely unsatisfactory forseveral reasons. In the first place, the cost of labor expended in theconstruction of such forms is higlnand because ofthe nature ofthematerial employed, namely wood, the forms after molding of theculvert constitute practically a totalwaste. Furthermore, due to the wetnature of theconcrete, when introduced into a wooden form, the form isliable to become distorted and there, is liable to be a leakage of theconcrete so that the com pleted culvert is not of the proper or uniformshape and is defective in one or more respects,

Therefore, the present invention has as its primary object to provide aform which may be readily set up for use and by the use of which aculvert of definite form and dimensionsmay be readily produced, theform, embodyingthe inven'-.

tion, being adapted to-be employed a great nume berfof times Withoutrequiring any replacement or repair of its parts. 7 e r V Another 'objectxof the invention is; to provide a form for molding concrete culvertsso constructed that its component partslmay be adjusted so j that aculvert-shaving any desired height, length 30, andwidth, to meetdifierentrequirements, may

be molded'by the use, of the form, it beingpos sible, by the use of thefornnto mold culvertsof from twoto twelve feet in width. 7 1

Another objector thejinvention islto provide a molding form for moldingculverts, which form may be, as stated above, employed, by aisimple.

' adjustment ofits parts,to mold culverts of diifere entdimensions andwithout the necessityof using any additional parts orany surplus bracesor the 0 like.

l This invention also consists in certain other features ofconstructionand in the combination and arrangement of the several partstolbe hereinafter fully described, illustratedin' the accom- 4panyingdrawings and. specifically pointed out in the appended claims;

In describing my invention in detail, reference i will behad to'theaccompanying. drawings where- 'in like characters denotelike orcorresponding parts throughoutthe several views, and in which:--' vFigure 1 is a top'plan view of -a mold form for concrete culvertsconstructed in accordance with the present invention, the Viewillustrating the form in a partly set up condition and in such thesesections are arranged, one .above another one'anothen it is preferablethat the plates "4' condition as will enable a like'asse mblage tofbeconnected therewith to oomplete'the culvert, i V j Figure 2 is a view inside elevationillustrating theformf" V} Figure 3 is "a view in endelevation ofthe cul- .60

vert looking at the' intermediate'end of the struc ture's'how'n inFigure 1.

Figure 4 is a similar view lo oking a t theother end of thestructureland illustrating the arrangement of the units of theiforrnwhich are employed in moldinjg'the'wing walls of the culvert; H e jFigurefilis a group perspective 'view illustrat ing the component partsof one section of one of the wingwall extensions of the mold form; I V

j. Figureh isa perspective view illustrating an:

othersectionof one of the wing walled.

I Figure 7 is, agroup perspectiveview illustrating the component parts:of a combinedfe xtension and bracing head' constituting a part ofoneendofthe'structuref H I I Figures is fa perspective view of'on'ejof'the side wallf secjonsof the core of the molding structure. ,jl j Figure 9 is a similar'view of lanothersection of thesidewall core;

Thernold formembodying the invention can prises "sidewalls which areindicated by t e j merall and; a core which is indicated in generalbythe'numeral 2, andwhich is" arranged "betweenjthesidewalls so as toprovide for the moldingjof the side and. top walls of thecul vert; thestructure further including "the wing walls indicated general by thenumeralj3 I moldedQ Each .,of the side wallscomprises alower platesection" 4 preferably of sheet iron,

.an intermediate section 5 'of like 'ma'teriah and an upper sections of'0116 same material, and V in the order referred to, and uprights- 7which are ofchannely-iron are disposed against the outer sidesof theassembled sections 4, 5 an'd 6 and secured thereto by bolts 8 and, orderthat the bracing uprights? may be arranged :in any desiredrelatiori andspaced'with respect to l Band 6 beformedg-inthe instance of the plate 4,along a line near the upper and lower: edges thereof, with boltopeningsathrough which the 3 'bolts S- are 'secured',' the sections 5being formed with similar. "groups. or series of, such openings 3 9, andthe upper, section d, being 'formed'with Y i similar openin thereof. 1

s 9;f1oc atedr near: the lower edge w In orderthat thestructure may ber'eenforcedl 4,

I extensionof the side wall structure, or if dean angle iron 10 issecured by bolts 11 to the outer side of the upper wall section 6, andextends along the upper edgethereofl At the right hand end of Figure2*it will be observed that a'number of the openings 9 are arranged inrows along the lower edges of the sections land 6, and the meetingedges'of the sections 4, 5

and 6, sothat the length of the, side walls may be increased by theconnection to these sections of other corresponding sections comprisingan sired, a pair of the wing wall units 3 maybe connected with this endstructure,'as well as at the left hand end-as shown in Figureg2.

The core unit 2 comprises side walls which are indicated in general bythe numeral 12 and each'of these side walls comprises a lower s ec-,-

tion 13 in the formoi a sheet ironplate,-and

an 'upper section 14 likewisein the form or" a sheet iron plate, thesections being assembled "edge to edgeand channel irons 15 being bolted,

asindicated by'the numeral 16, to the inner sides of the sections 13 and14 to relatively brace and connect the same The upper edges of the theupperedges ofthe flanges 17 upon the wall sections 14, and preferablythis topv plate will be formed in two sections, so aslto effect economyin the manufacture of the combined parts ofvthe side walls, and thesaidtop plate '20, the sections of the top plate 20 at their outer, edgesare securedby bolts 21 to the angle 'bars'19, and

kat their meeting edgesbyrbolts 21 which are likewisesecured through thesaid'bars 19.

A plate 22 .is boltedatone vertical edge to each .side' wall 1 {asindicatedby the numeral 23 and bolted to. the, other edgeof the plate,22 is N vthe flanged edge 2&1 of a vertically disposed plate 25 whichconstitutes a part of 'a respective one of theflwing wall extensions of'the'form.;-.- The side walls of each'iwing jform are indicated by lthenumeral 26'ahd' byfreferience to Figures 2, .4 and 5 of the drawings, itwill beseenthat each side wall comprises, in addition ,to'theplate 25,'otherplates 27, 28 a'nd 29, ,the plate 27 being .of oblong rectangularform and. the plates 28 andf.29.having inclined edges indicated by thenumerals 30 and-3'1 respectively, which are brought intoralinement whenthe plates are asspective plate 25; Both oftheside walls of each wingunit are of thehsame constructionjand in the instance of the inner sidewall of eachwing a plate 3,2,fcorresponding to the plate 2 5, is sejcuredat one vertical margin to the side walls of the respective wingunit,

The. wing units, .as will be evidentbyreference .to Figure 1, extend indiverging relation to each other, at any desired angle, and the sidewalls thereof; are braced at their outer ends by spacing means whichcomprise a plate 33 of a width equal to the spacing of the adjacent sideof the walls of the wing, and angle bars 34 which are secured to thesaid plate 33 and to the outer ends 'of the lower sidewall section 2'7by means of bolts 35. Angle irons "36 are secured to the upper edges 38and 31 of each of the sections 28 and 29 andserve'torelativelybracethese sections, and channel bars 37 are bolted as at38 to the outersides of the sections 2! and 28 of the side walls of each wing unit, andrelatively brace the said sections, and atthat end of each side sectionof the mold form with which the respective wing unit is connected, thereis provided 'asection 39 which is in the form of a sheet iron plate. orsubstantially oblong rectangular, form and one vertical edge-,oi whichis-provided with bolt openings 40 whereby the "said edge portion may besecured to the angular flange 24 of the section 25, and this section 39occupies the same-plane as thecorresponding side wall of the mold frameand the section is securedat its oppositevertical'marg'in by bolts 41which are passed through the openings 40' and the correspondingopeningsin the flange 24, and this section 391s provided at' its upper and innercorner with an outstanding flange l2 provided with boltopenings- 43'.The mold form 1 and the core 2 are connected, with the core 2 preferablycentered with respect to the form, by means of bolts44 which are securedthrough the side wallsof the form 1 and through the side walls 13 of thecore 2, these bolts being passed through the channel iron bars at everyintersection'of the said bars and plates, and

between thebolts 8 that'hold' the plates of the "channel irons.

1n order-that thewalls ofthe mold form 1 may be braced and preferablyspaced with respect to each other at the end thereof. from which thewing sections 3 extend, bracing units, indicated in general by thenumeral 45 are provided and each of these units comprises a pair ofoblong rectangular plates 46 which aremounted'at their ends uponpolygonal plates 47 which arefshown in detail'in Figure '7 of thedrawings, and'oneof the plates46 is provided along its lower'edge withan angularly extending-flange 48'which is of less length than the plateand which is provided with a-downwardly, right angularly turnedextension 49 formed withb'olt openings 50. is likewise formed nearits-upper edge with a series of bolt openings 51 and the other plate 46,which, instead'of the flange 48'and its extension 49 is provided' with adepending portion-52 oc-. cupying at common, plane therewith, isprovided Witha series of boltopenings 53 near its upper edgeandthe-series of bolt 'openingsf54 near the lower-edge of its extension 52,the extension 52 being 'of less length than the plate of which it,sembled and secured at their inner vertical marcompnses part a gins tothe forward vertical margins of the re- Plates 55 are arranged inupright position be- The plate 46 tween the projecting ends of theplates 46 and l angle plates 56 are disposed-against the outer sideofeach plate'55 and secured at their wings ,which' contact the plate 55 byrivets 57 to' the said plate, their other wings being formed with boltopenings 58 throughwhich'the bolts 59 are secured to anchor'the angleplates 56 to'the ends 'of the plates 46. Near the, edges of the rivetedwings of each member 56 there is arranged a bracket member 60 having anoutstanding lower end 61 through which a bolt 62 is s'ecured,-the

bolt fitting" also through an opening 63 formed in the respective'onejofthe polygonal plates 47.

Each Plate 47 is e i c redioy a bolt sentroofing nails,.so that when theform is to be-disted'through an opening 65 therein and through .ahorizontalflange of a bracket memberfifi which is riveted to the plate46 which is providedwith the portion 52. An angle iron bar 67 is securedby bolts 68 which fit therethrough and through From the foregoingdescription of the invention it will be evident that the side walls ofthe mold frame may bespaced apart any desired distance by the employmentof the connecting and bracing units 460i different lengths, aspreviously stated and the side walls of the mold form may be made ofdifferent lengths by suitably proportioning the plate sections 4, '5 and6 thereof as.

regards their length or, adding to these sections, shortersectionswhichrnay be secured in place by bolts passing through the openings 9.

It will be understood of course that instead of channel irons such asthose indicated by the numerals 7, 15 and 37, Woodpieces, substantiallyfour inches square in cross section, may be employed, and thiswillpermit of 'the use either of the bolts 44 or tie wires, whereverdesired, and in such a construction, the plates which are braced andconnected by the channel iron may be secured in place to the wood piecesby-the mantled, the plates will constitute means for pulling the nailsby the use of a wrecking bar behind the wood pieces. i a .What I claimisy 1. In a concrete culvert mold form, sidewalls arranged in spacedparallel relation, a core arranged between the .walls, plates projectingfrom correspondingendsof the side walls and coextensive in heighttherewith, angular shapedplates projecting from theaforementionedplates, wing Walls connected Withvthe angle plates andarranged in divergent relation, base plates horizontally supported onthe upperedges of the first V mentioned plates, spaced transversely?disposed h reinforcing-plates reposing edgewise on the base plates;angle shapedbrackets arranged between and connecting the adjacent endsof the transverse reinforcing plates, and depending portions carried bysaid transverse plates and of a length to fit between the firstmentioned plates secured i to the side walls. l

2. .In a concrete culvert mold form, side walls arranged in spacedparallel relation, a core arranged between said walls, platesprojecting, from.

corresponding ends of the side walls and coextensive in heighttherewith, angular shaped plates projecting from the aforementionedplates, wing walls connected with the angle plates and arrangedindivergent relation, base plates horizontally supported onthe upperedges of thefirst mentioned plates, spaced transversely disposedreinforcingplates reposing edgewi'se upon the base plates, ang1e shapedbrackets arranged between and connecting the adjacent ends of the itransverse reinforcing plates together and to said base plate, asubstantially inverted L-shaped f v extension depending from-the loweredge of one of the transverse plates and of a length to fit between thefirst'mentioned plates, a depending portioncarried by the other of,saidtransverse plates and of a length to'abut the inner faces of V thefirst mentioned plates,and reinforcing angle bars secured to saidextension and depending portion of the respective transverse plates.

4 CHASTEEN' F. soo'r'r.

